Fabrication of SiOx-G/PAA-PANi/Graphene Composite With Special Cross-Doped Conductive Hydrogels as Anode Materials for Lithium Ion Batteries

Rice husk-derived nano-SiO2assembled on reduced graphene oxide distributed on conductive flexible polyaniline frameworks towards high-performance lithium-ion batteries

“…This indicates that the SiO 2 in PANI-SiO 2 @rGO nanocomposite did not undergo service pulverization and that the PANI coating could reduce electrolyte decomposition on the SiO 2 surface and act as a exible shell to buffer the volumetric change of SiO 2 . 31,43,44 According to the above results, it was clear that the PANI shell's superior mechanical properties can buffer the volumetric expansion/ shrinkage of SiO 2 nanoparticles and maintain the integrity of Fig. 7 The TEM investigation of PANI-SiO 2 @rGO nanocomposite after cycle: solid-electrolyte interface (SEI) formation of (a) island-like structure and (b) completely formed layer, and (c) microstructural-cycled PANI-SiO 2 @rGO.…”

“…This indicates that the SiO 2 in PANI-SiO 2 @rGO nanocomposite did not undergo service pulverization and that the PANI coating could reduce electrolyte decomposition on the SiO 2 surface and act as a flexible shell to buffer the volumetric change of SiO 2 . 31,43,44 According to the above results, it was clear that the PANI shell's superior mechanical properties can buffer the volumetric expansion/shrinkage of SiO 2 nanoparticles and maintain the integrity of the working electrode structure during discharge/charge cycles, thereby contributing to the long-term cycling stability. The rate performance of PANI-SiO 2 @rGO and SiO 2 @rGO nanocomposites electrodes was investigated using current densities ranging from 0.1 to 2.0 A g −1 , as shown in Fig.…”

“…We hypothesized that since the SiO 2 @rGO had been coated with the PANI shell, the flexible shell would significantly buffer the volume change of the SiO 2 spheres when they intercalated and deintercalated with lithium ions repeatedly. 3,31 It is anticipated that this distinct coral-like structure will improve the electrochemical performance of PANI-SiO 2 @rGO composites as LIBs anodes.…”

“…Thirdly, the PANI elastomer is capable of accommodating the volume change of the nanocomposite during Li-alloying/dealloying processes, effectively inhibiting SiO 2 pulverization. 31,45,46…”

Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

“…Bulk, core-shell, porous, sandwich, and nanowire SiO x materials have also been developed in recent years. [288][289][290][291][292] Micron-sized SiO x materials usually have significant application value due to their low cost, small surface area, and high ICE values and compaction densities, as well as high energy densities in full cells. Deng and coworkers developed a novel core-shell P-SiO x @ polymeric tannic acid (PTN) composite through a facile in situ polymerization process.…”